General Motors is expanding the powertrain offerings of its Chevrolet Silverado and GMC Sierra pickup trucks.
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We take a look at the just unveiled 2015 GMC Yukon Denali and Yukon XL, and drive the Sierra Denali with the new Ecotec3 6.2-liter engine.
The 2014 Chevrolet Silverado 1500 and GMC Sierra 1500 will be the most powerful trucks on the road, when a new V-8 engine debuts this fall.
The 2013 GMC Acadia was first unveiled earlier this year at the 2012 Chicago Auto Show sporting a new front-end and some other tweaks.